Interlocking directorate
（重定向自Interlocking directorates）
Interlocking directorate refers to the practice of members of a corporate board of directors serving on the boards of multiple corporations. A person that sits on multiple boards is known as a multiple director. Two firms have a direct interlock if a director or executive of one firm is also a director of the other, and an indirect interlock if a director of each sits on the board of a third firm. This practice, although widespread and lawful, raises questions about the quality and independence of board decisions.